Dell Precision M4500 Administrator's Manual page 55

IDE-R allows an Intel AMT-managed client to be booted by a management console from a remote disk image. If the client
system does not support IDE-R, this value cannot enable it.
Option
Enabled
Disabled
NOTE: Disabling IDER does not remove this feature but only blocks it from being used.
Redirection Mode
Under the SOL/IDER page select, Redirection Mode and press Enter.
Description
IDER is enabled
IDER is disabled.